Evaluation for 5.2c
Materials provide opportunities for students to evaluate mathematical representations, models, strategies, and solutions for efficiency, flexibility, and accuracy throughout learning pathways.
Students have opportunities to evaluate mathematical representations, models, strategies, and solutions for efficiency, flexibility, and accuracy throughout learning pathways. For example, in the “Word Problems: Addition and Subtraction Within 100” lesson, students engage in the “Three Reads” instructional routine to analyze word problems, identify relationships among quantities and units, generate mathematical questions, and determine appropriate solution pathways. Students select questions to solve; represent their thinking using equations, drawings, and mathematical tools; and communicate their reasoning using mathematical language and representations.
The lesson includes structured opportunities for students to evaluate the accuracy and reasonableness of solutions by discussing relationships among quantities, comparing answers, and explaining how representations support problem-solving. Students are encouraged to use and compare multiple representations, including drawings, equations, base 10 blocks, open number lines, and bar models. During class discourse, students share strategies, explain their reasoning, consider alternative approaches, and discuss whether different methods produce valid solutions. Students are asked whether a problem was solved in a different way, and peers are encouraged to agree, disagree, or add to another student’s explanation. These prompts provide opportunities for evaluating mathematical representations, models, strategies, and solutions for efficiency, flexibility, and accuracy.